| Countries of the World in 1444 | 0 | - | 4.98 | 59,806 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 57,067 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 68,399 |
| Countries of the World in 1900 | 0 | - | 4.89 | 83,991 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 193,902 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 149,601 |
| Independence from Whom | 0 | - | 4.99 | 210,322 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,175 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,159 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,438 |
| Countries by Founding Story | 0 | - | 4.95 | 76,785 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,810,256 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,394 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,404 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,599,793 |
| Modern-Day Countries of the Khmer Empire on a Map | 0 | - | 4.74 | 45,272 |
| Modern-Day Countries of the Mayan Civilization | 0 | - | 4.77 | 33,136 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,098,286 |
| Recently Independent Countries | 0 | - | 4.98 | 158,278 |
| Countries by Former Name | 0 | - | 4.99 | 124,586 |
| Historical City to Country | 0 | - | 4.84 | 78,271 |
| Landlocked Countries | 0 | - | 4.99 | 415,809 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 559,380 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.78 | 42,874 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,668 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,596 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,475 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,845 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,729 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,971 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,465 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,037 |
| Pixelated World Map | 0 | - | 5.00 | 142,778 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,339 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,136 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,734,675 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 81,591 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,507 |
| Himalayan Countries | 0 | - | 4.95 | 136,142 |
| Andean Countries | 0 | - | 4.95 | 83,261 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,564 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,754 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,267 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,893 |
| Danube Countries | 0 | - | 4.97 | 71,309 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,076 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,763 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,969 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,921 |
| European Landlocked Countries | 0 | - | 4.99 | 146,017 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,617 |
| Countries with the Most Species | 0 | - | 4.99 | 95,375 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,756 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,290 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,458 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,097 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,747 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,122 |
| Countries in the Alps | 0 | - | 4.86 | 117,204 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,816 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,706 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,195 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,638 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,442 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,188 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,875 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,932 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,736 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,267 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,301 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,169 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,657 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,920 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,928 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,567 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,835 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,372 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,105 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,527 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,357 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,764 |
| Largest Countries By Category | 0 | - | 4.97 | 157,126 |
| Countries by Countries | 0 | - | 4.96 | 62,500 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,756 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,048 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,392 |
| All Countries by Population With a Map | 0 | - | 4.98 | 107,455 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,342 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,015 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,211 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,328 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,075 |
| Island Countries | 0 | - | 4.99 | 708,528 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,042,350 |
| Northernmost Countries | 0 | - | 4.99 | 358,958 |
| Countries of South America | 0 | - | 5.00 | 918,556 |
| Countries of Oceania | 0 | - | 5.00 | 1,045,210 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,856,004 |
| "Land" Countries | 0 | - | 4.98 | 334,229 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,837 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,368,397 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 104,670 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,350 |
| Battle to Country | 0 | - | 4.91 | 52,780 |
| Countries by Independence Day | 0 | - | 4.61 | 52,659 |
| Former Countries by Capital | 0 | - | 4.45 | 127,203 |
| Former Countries | 0 | - | 4.75 | 132,906 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,045 |
| Countries with Megacities | 0 | - | 4.99 | 248,498 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,927 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,432 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,314 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,371 |
| Countries by Official Language | 0 | - | 4.95 | 193,614 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,122 |
| Countries in their Native Language | 0 | - | 4.99 | 197,333 |
| Subdivisions by Country | 0 | - | 4.86 | 50,165 |
| Megadiverse Countries | 0 | - | 4.96 | 134,491 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,510 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,044 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,579 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,927 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,942 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,322 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,486 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,321 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,795 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 76,035 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,544 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,648 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,615 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,820 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,148 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 101,021 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,282 |
| World Map Quiz | 0 | - | 4.81 | 63,902 |
| Empty World Map without 20 Random Countries | 0 | - | 4.93 | 135,916 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 153,956 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,638 |
| Countries within the Arctic Circle - Map Quiz | 0 | - | 4.85 | 63,423 |
| Countries by Road Signs | 0 | - | 4.98 | 53,325 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,894 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,584 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,300 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,481 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,174 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,368 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,557 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,103 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,577 |
| Widest Countries East to West | 0 | - | 4.92 | 129,078 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,302 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,558 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,672 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,902 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,894 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,281 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 76,927 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,654 |
| Countries With the Tallest People | 0 | - | 4.91 | 94,652 |
| Countries with Double Letters | 0 | - | 4.96 | 93,784 |
| Countries that End in N | 0 | - | 4.94 | 157,217 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,166 |
| Countries with Six Letters | 0 | - | 4.93 | 210,807 |
| Countries with W | 0 | - | 4.97 | 158,481 |
| Countries with Z | 0 | - | 4.98 | 288,364 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,837 |
| Countries That End in U | 0 | - | 4.95 | 119,652 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,974 |
| Countries that End in O | 0 | - | 4.92 | 158,688 |
| Countries that End in R | 0 | - | 4.87 | 118,400 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,956 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,522 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,616 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,701 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,262 |
| Countries That End in Y | 0 | - | 4.90 | 185,311 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,702 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,977 |
| Countries that End in I | 0 | - | 4.94 | 134,582 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,570 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,342 |
| Countries That End in NIA | 0 | - | 4.92 | 109,194 |
| Countries That End in BIA | 0 | - | 4.92 | 148,292 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,324 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,689 |
| Countries That End in RIA | 0 | - | 4.93 | 126,244 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,227 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,879 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,750 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,106 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,651 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,063 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,340 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,859 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,747 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,929 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,409 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,072 |
| Countries that End in L | 0 | - | 4.94 | 156,193 |
